Plaster-board.



E. BYE & K. BUER.

PLASTER BOARD.

APPLICATION FILED SEPT.16, 1909.

Patented May 3, 1910.

ANDREW s. GRAHAM co. PHOTOVUTLOGRAPMEPS wAsmNaToN, D c

ERLING BYE AND KRISTIAN BUER, 0F BROOKLYN, NEW YORK.

PLAS'IER-BOARD.

Specification of Letters Patent.

Application filed September 16, 1909. Serial No. 518,038.

To all whom it may concern:

Be it known that we, ERLING BYE and KRISTIAN BUER, subjects of the King of Norway, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Plaster-Boards, of which the following is a specification.

This invention relates to plaster boards, and has particular reference to articles of this character for use in the construction of buildings which shall be cheap to construct, easy to place in position, and which shall be durable and present a pleasing appearance.

The invention consists in the construction of a plaster board in a specifically novel manner, as will be hereinafter fully set forth and claimed and illustrated in the accompanying drawings, in which Figure 1 is a face view of the principal portion of a plaster board made in accordance with this invention and Fig. 2 is a sectional view thereof.

Throughout the following description and on the figures of the drawings similar parts are referred to by like reference characters.

We are aware that plaster boards, tiling, and other substitutes for laths, and the like, have been proposed, the same being composed of composite or laminated structures, but as now commonly made such devices are wanting in certain features of utility possessed by this present invention.

In carrying out this invention in practice a layer A, preferably of plaster of paris, is spread upon a mold having cavities if it is desired to produce a finished article having an embossed or raised figured effect. Such embossed effect is indicated in the present instance at a. If it is desired for the plaster board to receive a coat of paper or other covering after being placed in position the surface of the layer A may be left. smooth or plain. Upon the layer A, while it is still in the mold and in a plastic condition, is placed a strip or layer of some suitable reticulated material, preferably an open mesh burlap, which is not only cheap and strong, but because of its physical properties is well adapted for uniting with the other parts of the plaster board, said second layer being indicated at B. The next layer consists of a mixture of plaster of paris and some vegetable fiber. e have found in practice that the hair or fibers from the cocoanut shell are possessed of peculiar merit for this purpose, the same combining with the burlap and the plaster of paris in a more effective manner than other characters of fiber generally known to this practice. A loose coating of cocoanut fiber c, of any suitable thickness, is applied directly upon the burlap B, the fibers thereby intimately combining with the fibers or meshes of the burlap. Next in order soft plaster of paris is spread upon the burlap and cocoanut fibers, thoroughly impregnating and uniting all of the adjacent fibers of the same, and forming the third layer C of the structure.

The plaster boards made as indicated may be of any suitable shapes or dimensions and may be handled and used without danger of breakage in the manner well understood in this art.

Having thus described. the invention, what is claimed as new is:

A hereindescribed plaster board comprising a layer of plaster of paris, a strip of loose open mesh burlap applied thereto while the plaster of paris is yet plastic, a layer of loose cocoanut fiber applied to the burlap, with whose meshes and fibers the cocoanut fibers commingle, and a second layer of plaster of paris which thoroughly impregnates the meshes and fibers of the burlap and the other fibers applied thereto, substantially as set forth.

In testimony whereof we affix our signatures in presence of two witnesses.

ERLING BYE. KRISTIAN BUER. WVitnesses CARL SINGVALD DAHL, NILS NILSON.

Patented May a, rare. 

